Your proposed solution did not work.
That's too bad. It used to. I'd feedback Apple. http://www.apple.com/feedback/
I did not say it was a "shady update". Those are your words.
No actually, they're not. Read this thread more carefully.
I disagree with forcing an update just to advertise (and take up even more memory). Updates should be provided to solve a problem or provide more features.
If you disagree, remove the app from your computer and stop using it. You are not forced to do anything. I'm presuming you're an adult. The amount of memory for the update is truly insignificant. And this update does add more features, you just feel, for some reason, the developer should do good work for free. They already gave you the app for free and a table...why on earth do you feel you deserve more...
Maybe I am naive, but when I see an update through the Apple Store I am assuming that Apple is sanctioning this and it has been verified. Is this the case or is Apple simply allowing any developer to push an update as they feel? Sounds like a big security concern.
To answer the first statement, yes. And obviously Apple has control over a product's existance in their store. There is absolutely nothing wrong with a developer adding more features for a fee - a fee which is not applied by simply doing the update. It has always been this way, the only difference now, is that they are offered digitally instead of walking into a store. You did happen to notice the "store" part of "app store" I hope. The "security concern" part made me kind of giggle. Thanks for that.
However, the real problem is there does not appear to be a way to delete or ignore updates you do not want...
And that brings us to the really only valid thing you've said. I'd feedback Apple.